baber/WOPTO huggingface dataset:
Patent GB-231611-A (GB)
Title: Improvements in and relating to incubators
IPC: A01K41/02
Filed: 1924-01-21
Abstract: 231,611. Kiss, A. Ledacs-, and Molnar, G. Jan. 21, 1924. Thermostats.-The temperature of the eggs in an incubator is regulated by movement of the egg tray towards or from a hot-water container, the movement being controlled by a thermostat. In one form of the device the egg tray B is supported upon cords passing over pulleys C, D. Figs. 1 and 2, and wound upon spindles E<1>, E<2>. A weight H tends to raise the tray by means of a cord passing over pulleys G and wound on a drum upon the spindle E<2>. Each spindle E<1>, E<2> is geared to a speed regulator comprising centrifugal weights Z, Fig. 3, attached to flat springs so as to draw a sliding disc V into contact with a brake X, and is normally prevented from rotating by a brabe P acting upon a disc W. A thermostat J moves a double-armed lever N that releases the brake on the spindle E<1> when the temperature rises, allowing the tray B to descend, and releases the spindle E<2> when the temperature falls, allowing the weight H to raise the tray. In another form the trav B is carried on wheels b, Fig. 5, gearing with vertical racks a and turned by worm gear e<1>, e<2> from a spindle e that is actuated by a weight attached to a cord wound on a drum r and passing over pulleys G. A pinion f, Fig. 7, on the spindle e is slid into engagement with either of the rotary tappets g<2>, g<3> that rotate in opposite directions when a brake is removed from the disc W of the speed regulator. The pinion f is slid by a lever connected to a thermostat, the lever having a double contact to release the brake on moving either up or down.
Patent GB-142064-A (GB)
Title: Improvements in loom heddles
IPC: D03C9/02
Filed: 1920-01-20
Abstract: 142,064. Ruegg, H. Jan. 20, 1920. Healds are each formed from a single metal or other strip 10, Fig. 1, provided with an eye 12 formed by bent parts 15, 16 of the strip, which is split upwards from the eye into two parts 13, 14. The part 13 is bent over the part 14, as shown in Fig. 2, the upper cross-bar of the heald frame being passed through registering openings 19 in the two upper parts of the strip, and the lower cross-bar through an opening 18. The members 13, 14 can be spread apart, as shown in dotted lines in Fig. 3, to facilitate the introduction of a warp thread into the eye, and one of them may have a lug 26, Fig. 5. In a modification, a strip 40, Figs. 10 and 11, is used having two struck-up vertically-disposed lugs 41, 42, arranged in different planes to serve as an eye.. A covering-strip 50 is provided.
Patent GB-879968-A (GB)
Title: Improvements relating to electrical plug and socket connectors
IPC: H01R13/11
Filed: 1959-01-19
Abstract: 879,968. Two-part couplings. SIEMENS & HALSKE A.G. Jan. 19, 1959 [Jan. 20, 1958], No. 1898/59. Class 38 (1). A socket contact comprises a double-leaf spring contact A housed in cavity B in a socket carrier 1, parts 2a of the leaves C, D and portions 1a of the cavity walls, diverging towards the opening of the cavity the leaves being spaced from its walls sufficiently to allow entry of contact pin 6 whilst ensuring effective contact with it. Flanges F fit loosely in recesses G, prolongations 2b on the flanges fitting into pockets 1c, the fit enabling the flanges to move freely, both vertically and horizontally. Portions 2f of the leaves are divergent in the opposite direction to parts 2a, the corresponding wall portions being parallel. The tail portion E is threaded through a slot in the carrier, its end part 2c being twisted to prevent withdrawal. The tail portion is further retained in the slot by corrugations engaging the slot walls and notches engaging the slot edges after twisting (Fig. 2, not shown). For fixing, carrier 1 has a resilient frame 3 fixed on it by lugs 3a fitting over projections 1e on the carrier. To mount the carrier on base plate 4 the lugs are bent back as indicated, freeing the frame and securing the socket. Loop 5, with its ends hooked in the holes of lugs 3a, serves to clamp a plug-in relay in the socket.
Patent GB-486976-A (GB)
Title: An improved machine for destroying bracken and like growths
IPC: A01B39/18
Filed: 1937-01-22
Abstract: 486,976. Destroying bracken &c. GIRVAN, W. M. Jan. 22, 1937, No. 1901. [Classes 6 (i) and 6 (iii)] A frame A mounted on land wheels B carries bearings for a shaft J to which chains Mare attached at one or both ends. The length of the chains is adjustable and the chains themselves or their attachments to the shaft may be arranged to break under excessive stresses. The shaft J may be driven through a clutch and gearing from the axle of the wheels B or from a motor.
Patent GB-1477619-A (GB)
Title: Peg top
IPC: A63H1/04
Filed: 1976-01-19
Abstract: 1477619 Tops PETER BADURA SPIELZEUGUND GERATEBAU GmbH 19 Jan 1976 [11 Feb 1975] 01922/76 Heading A6S A top comprises a main body 7 having a tip 8 on which it can spin, and a spinner 4 fast with two cords 3 connected to actuating knobs 1, 2, a permanent magnet 5 in the spinner being engageable with ferromagnetic pins 6 or a ferromagnetic ring in a recess in the top body. The spinner body 4, &c. can be re-engaged with the main body 7, while the latter spins by lowering it into position. The main body 7 and spinner 4 may be made of wood or plastics.
Patent GB-192090-A (GB)
Title: Improvements in electrical amplifying apparatus
IPC: H03D11/02
Filed: 1923-01-22
Abstract: 192,090. Westinghouse Electric & Manufacturing Co., (Assignees of Slepian, J.). Jan. 20, 1922, [Convention date]. Thermionic amplifiers and detectors; audible reception of unmodulated continuous waves.- Relates to receiving-apparatus for wireless and like signals employing a back-coupled valve which is set into oscillation by a received impulse and is choked into quiescence immediately afterwards by a negative charge accumulating on its grid; and consists in providing means for controlling the choking effect in accordance with the intensity of the received impulses. Fig. 1 shows one arrangement in which the aerial inductance 25 is coupled to a tuned circuit 14, 15 in the plate circuit of the valve 1 and to a coil 7 in the grid circuit. The grid circuit is completed through a grid leak 9 shunted by a condenser 8, and the plate circuit includes a battery 12 and telephones 11. When continuous wave telegraph signals are received on the aerial, the valve oscillates intermittently, being choked periodically owing to a negative charge accumulated on its grid being unable to escape rapidly through the leak resistance. The oscillations may be of audible group frequency and will then give rise to an audible note in the telephones. The invention provides another coil 16 coupled to the coils 15, 25 and connected in circuit with the grid leak 8, 9 and a rectifying-valve 17. By this means the received signals are caused to apply a biassing voltage to the grid, with the result that the amplitude reached by the intermittent oscillations before they are choked varies with the intensity of the received signals. The apparatus may thus be used for reception of telephone signals, but in this case the grid leak 9 should be adjusted so that the group frequency of the intermittent oscillations is above the audible limit. In a modification shown in Fig. 2, the two valves are combined in one tube 27, the function of the anode of the rectifying valve being performed by an extra grid 31 placed between the usual grid 32 and plate 28. The rectifying- grid 31 is connected to one end of the coil 33, the other end of which is connected through the grid leak 9 to the cathode 29, while the grid 32 is connected to a tapping on the coil 33.
Patent GB-567880-A (GB)
Title: Improvements in, or relating to, plate heat exchange apparatus
IPC: F28D9/00
Filed: 1943-02-05
Abstract: 567,880. Heat-exchangers. BELAIEFF, J. F., DELANEY, C. T., and GALLAY, Ltd. Feb. 5, 1943, No. 1956. [Class 64 (iii)] An annular heat exchanger comprises alternate coolant chambers 1, each constituted by a pair of parallel thin plates 2 spaced by a thin V-corrugated strip 3, and diverging passages for the cooling medium, each locating a pair of corrugated elements 5 separated. by a plate 4. In order that the elements 5 may be made from metal strips by a simple transverse corrugating process and without variation in length thereof, they are shaped as shown, that is, with corrugations of constant pitch, p =p<1>, flattened progressively from end to end.
Patent GB-1081881-A (GB)
Title: Improvements in or relating to air sampling apparatus
Inventor: MAY KENNETH ROWLAND
IPC: G01N1/22
Filed: 1965-01-15
Abstract: 1,081,881. Gas sampling. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 14, 1966 [Jan.15, 1965], No.1964/65. Heading G1B. An air sampling apparatus consists of a vessel internally divided into at least two compartments 1, 2 each compartment having a tube 5 connecting it with the next compartment in the series, each tube reaching well into both of the compartments it connects and having an outlet end which has a smaller bore than that of the preceding interconnecting tube, each compartment but the last having a rigid sterilizable absorbent bed 9, 10 facing the outlet end of the tube from the preceding compartment, the interconnecting tube 6 entering the last compartment 3 having an outlet nozzle 7 close to and directed at an acute angle to the base of the compartment, and the last compartment having an outlet tube 16, Fig. 2 (not shown) through which it can be connected to a pump. Sampling fluid is placed in the bottom of each compartment up to the level of the top of sintered glass discs 9, 10 so that as air impinges on the discs particles of a certain size and weight range are retained on the moist surface of the disc. When the sampling operation is complete the liquids are flushed around the compartments to remove the particles from the discs 9 and 10 and the liquid is then syphoned off for analysis.
Patent GB-1391571-A (GB)
Title: Sheet feeding device
IPC: G03G15/00
Filed: 1973-01-15
Abstract: 1391571 Feeding sheets HOECHST AG 15 Jan 1973 [17 Jan 1972] 2054/73 Heading B8R Sheets are separated from the top of a pile 17 by means of a reciprocable member 6 of non- slipping material such as soft porous form. A metal plate 18 is secured to the member 6 and is welded at 19 to the outer sheath of a telescopic rod system 7, the sheath being located in a bore in the member 6 and the inner rod being secured to a metal plate 8 connected to a handle 10 to be slidable along a slot in a removable lid 12. The handle 10 is moved to the left to separate the top sheet and returned by a spring 14, the linkage being such as to reduce the pressure of the member 6 on the pile during the return stroke. As the pile decreases in height, the rod system 7 extends. The front and rear walls 2b, 2c of the pile tray 2, which is located in a housing 1, slope forwards and upwards, and the upper face of the wall 2b has secured thereto two strips of fabric extending in feed direction and broader at the bottom than at the top, to prevent double feed. The sheets may be of zinc oxide for supply to an electrophotographic copier, and the pile is electrically insulated from the tray 2 by thin insulating strip 16, while each sheet separated passes over the conducting edge 3A of the tray to avoid any charge being carried back to the pile from a subsequent charging station. The tray 2 carries side guide plates, one being spring-urged inwards, and each having an inwardly-directed layer of felt or velvet.
Patent GB-1375216-A (GB)
IPC: C09K8/46
Filed: 1972-01-17
Abstract: 1375216 Cements LONE STAR INDUSTRIES Inc 17 Jan 1972 [25 Jan 1971] 2091/72 Heading C1H A dry and non-lumpy composition comprises an hydraulic cement intimately mixed with, e.g. 0À25-5% of water, and aged for at least 30 minutes. When made into a slurry with fresh or sea water can be used for cementing bore holes. Cements are portland, natural, white, aluminous, grappier, pezzuolanic (including slag), and hydraulic limes. Retarders, e.g. lignosulphonate alone or with glucenates, cellulose derivatives, and various sulphonates polymers are added to the slurry to give a thickening time of at least 3 hours.
Patent GB-564610-A (GB)
Title: A method of introducing an amino group into aromatic compounds
IPC: C07C209/02
Filed: 1943-02-09
Abstract: An amino group is introduced into an aromatic compound by reaction of the aromatic compounds, in presence of strong sulphuric acid and a metal salt, with a compound of the formula R-CH2-NO2, in which R is H, or an alkyl, aryl or aralkyl group, e.g. nitro- or dinitro-methane or ethane or nitropropane.  Aliphatic nitro compounds may be replaced by the isomeric hydroxamic acids, thus dinitroethane may be replaced by hydroxam-oxalic acid.  A salt of iron or vanadium in amount wholly dissolved in the acid is preferred.  The process may be used for introducing amino groups into dyestuffs, e.g. of the anthraquinone group or indigoids and for analytical purposes when the presence of a benzene or naphthalene ring is suspected, the amino group introduced being detected by diazotisation.  Examples give the preparation of sulphanilic and metanilic acid from benzene, aminonaphthalenesulphonic acid from naphthalene, aminoanisolesulphonic acid from anisole, aminophthalic acid from phthalic anhydride, aminosulphobenzoic acid from benzoic acid, aminoanthraquinone from anthraquinone, a -aminoalizarin from alizarin, aminobenzanthrone from benzanthrone, aminobenzoic acid from phenylnitromethane, a black dyestuff from dibenzanthrone.  An amino group can also be introduced into anthraquinonesulphonic acid, chloroanthraquinone, phenanthraquinone, and a dark navy-blue dyestuff is obtained from isoviolanthrone, brown dyestuffs from pyranthrone, and grey dyestuffs from indigo and thioindigo.
Patent GB-487696-A (GB)
Title: Improvements in and relating to buoy lamps
IPC: B63B22/16
Filed: 1937-01-26
Abstract: 487,696. Visible signalling-apparatus. COATES, G. W., STANDIDGE, J., and TEASDEL, J. W. Jan. 26, 1937, No. 2232. [Class 118 (ii)] In a buoy lamp having a mercury contactor a by means of which lamps h, i are caused to flash, a switch m is provided so that a fixed or flashing light may be given. One pole of each lamp is connected to the accumulator f, the other poles being connected to electrodes e, sealed into the glass tube a containing mercury b, a common electrode k being connected to the other pole of the battery through the main switch l.
Patent GB-1012771-A (GB)
Title: Improvements in or relating to hinges
Inventor: DOUGLAS JACK ERNEST
IPC: E05D7/086
Filed: 1962-01-22
Abstract: 1,012,771. Hinges. ARTHUR SHAW & CO. Ltd. Jan. 22, 1963 [Jan. 22, 1962], No. 2338/62. Heading E2F. A hinge for windows comprises two components 1, 2 one of which has a body 3 with a mounting flange 5 at one end and a projecting boss 8 at the other end and the other of which has a body 10 with a mounting flange 12 at one end and a cylindrical cavity which opens to the other end and into which the boss extends, the boss being surrounded by a radially expandable collar 16, 17 which is adapted to be gripped, to a greater or lesser degree, between the boss and the internal surface of the cavity by axial adjustment of a screw 19 engaging a tapped hole in the first component. The halves 16, 17 of the collar, which are made of nylon and are separated longitudinally, are formed with longitudinal grooves 18 engaging ribs 9 on the boss to prevent relative rotation between the collar and the first component. The mounting flanges may be detachably secured to the bodies of the two components.
Patent GB-883261-A (GB)
Title: Apparatus and method for removing welding bulges on chain links
Inventor: WEHLIN EGON
IPC: B23D79/02
Filed: 1960-01-22
Abstract: 883,261. Broaching. ALLMANNA SVENSKA ELEKTRISKA A.B. Jan. 22, 1960, No. 2355/60. Class 83 (3). A machine for removing a welding bulge 23 from a limb 13 of a welded chain link comprises a fork-shaped cutting tool 12 having two oppositely directed cutting edges 20, 21 and means for swinging the tool about the limb axis. A wheel 2 is rotated to swing levers 5, 6, attached to a lever 9 bearing the tool carrier 11. The levers 6 and 9 are joined by a piston 17 which can be operated to move the tool to and from the work. The edges 20, 21 and 22 on the tool trim off the metal 23. Specification 813,227 is referred to.
Patent GB-1011802-A (GB)
Title: Improvements in or relating to rotary ploughs
IPC: A01B9/00
Filed: 1963-01-18
Abstract: 1,011,802. Agricultural implements. PATENT CONCERN N.V. Jan. 18, 1963 [Feb. 12, 1962], No. 2389/63. Heading A1B. A soil cultivating machine comprises cutting blades 24 which are arranged in pairs and are provided with inwardly facing cutting members which cut loose the earth and carry it round, where it is acted on by scraper members 44 and pushed away from the cutting blades. The position of the members 44 may be adjusted by the attachment of a bar 50 in any one of a plurality of holes 55 in a bracket 54 by means of a pin 56. The members 44 may be reciprocated by means of pins 59 which engage members 62 on the shaft 6 on which the blades 24 are mounted. To prevent reciprocation of the members 44 the pins 59 may be retracted and held by their ends in a slot 58A. Specifications 1,011,803, 1,011,804 and 1,011,805 are referred to.
Patent GB-719566-A (GB)
Title: Process for modifying the solubility of polymers
IPC: C08J3/09
Filed: 1952-01-30
Abstract: The solubility at ambient temperatures of N,N-dimethylformamide-soluble acrylonitrile polymers, containing at least 85 per cent. acrylonitrile and free from hydroxyl groups, is reduced by submitting the polymer in finely divided state to a non-hydrolyzing treatment with an aqueous solution of formaldehyde, any excess formaldehyde being removed after the separation of the polymer from the reaction medium.  Specified polymers are polyacrylonitrile and a copolymer of acrylonitrile with 5 per cent. of vinyl dimethylaminoethyl ether.  The treatment is preferably carried out at a temperature between 10 DEG  and 150 DEG C. for a period between half and 24 hours.  The aqueous formaldehyde solution may be acid, neutral or alkaline in reaction, and may contain a bleaching agent, such as sodium chlorite.
Patent GB-347268-A (GB)
Title: Process and apparatus for the production of absolute alcohol from unpurified spirit
Filed: 1930-01-24
Abstract: <PICT:0347268/III/1> In the production of absolute alcohol by azeotropic distillation, a mixture of raw spirit, water and benzene is introduced into the column 1 by a pipe 2.  A mixture of benzene, water, alcohol and mainly low boiling impurities passes from the top of the column 1 through condensers 19, 20 to a separating column 3 where the benzene is drawn off, after addition of water if necessary, by a pipe 4 connected to the pipe 2, the remainder passing by a pipe 5 to a rectifying column 6.  Fusel oils are drawn off at 12, and the alcohol passes by way of a cooler 7 to the pipe 2, the low boiling impurities passing off at the top of the column to a separator 9 through a reflux condenser 21 and a condenser 22; any benzene is returned to the pipe 2 and the impurities pass off by a pipe 11; some fusel oils may pass over with the low boiling impurities. The mixture of alcohol and higher boiling impurities in the column 1 is drawn off to a column 13, any benzene being condensed in reflux condenser 23 and condenser 24 and passing to the pipe 2 by a pipe 14.  From the column 13 the alcohol passes by a pipe 15 to a column 16 where high boiling impurities are drawn off at 18 and alcohol passes to a reflux condenser 25 and a condenser 26, being drawn off by a pipe 17. German Specifications 142,502 and 287,897, and French Specifications 578,480 and 644,202 are referred to.
Patent GB-739356-A (GB)
Title: Needle roller bearings
IPC: F16C21/00
Filed: 1954-01-28
Abstract: 739,356. Roller bearings. HARDY SPICER, Ltd. (Soc. Anon. Glaenzer Spicer). Jan. 28, 1954, No. 2588/54. Class 12 (1). Needle rollers 13 are retained in a cap member 11 by an annular sheet metal member 21 having a flanged portion 15 press-fitted in the open end of the cap 11 and an external abutment 19 to limit its inward movement. The ends of the rollers are bevelled, and adjacent portions of the member 21 and cap 11 are correspondingly shaped.
Patent GB-153213-A (GB)
Title: A new or improved hand or foot warmer
IPC: A61F7/03
Filed: 1920-01-28
Abstract: 153,213. Martin, J. Walter-. Jan. 28, 1920. Hand and foot warming stoves.-In a hand or foot warmer of the kind described in Specification 105,388, the casing 1 is provided with a removable burner at each end as shown in Fig. 3 or with an internally fitted burner as shown in Fig. 4, the burner in each case consisting of a container 2 for the gasolene absorbant provided with a flanged opening 4 into or on to which fits a basket-like holder 5 for the catalytic substance. The holder is formed of metal gauze with retaining wires 8 for the catalytic substance, and is provided with a handle 7. The casing 1 is provided with a number of perforations 9 to allow the necessary circulation of air. In the construction shown in Fig. 3 the container 2 is shaped so as to fit the end of the casing 1; in the construction shown in Fig. 4, the container has flanges 10 sliding in grooves 11 in the casing, and has a rod 3' attached for facilitating insertion or removal.
Patent GB-740202-A (GB)
Title: Improvements in double-lift jacquards for weaving looms
IPC: D03C3/24
Filed: 1954-01-29
Abstract: 740,202. Double lift Jacquards. SOC. DES MECANIQUES VERDOL. Jan. 29, 1954 [Jan. 30, 1953], No. 2761/54. Class 142 (2). In a jacquard havin oppositely-moving griffe 5, 6, Fig. 7, operating double-legged hooks a, b, those hooks, e.g. 1a, that have been pushed clear of a rising griffe bar (5a) come into the path of a bar (11a) on the descending griffe and are thereby positively lowered. In another form, Fig. 13, the hooks have inturned ends 13 which engage channels 15 in the griffe bars.
Patent GB-689319-A (GB)
Title: Improvements in or relating to the production of 17(ª‡)-hydroxy-20-keto-pregnane compounds containing keto substituents in the perhydrophenanthrene nucleus and related compounds
IPC: F04B1/06
Filed: 1950-02-02
Abstract: 17 : 20 - Osmate esters of 17 : 20 - dihydroxy-20-cyanopregnanes containing at least one keto group in the perhydrophenanthrene nucleus are manufactured by the action of oxidizing agents (e.g. potassium permanganate, hypobromous acid or especially chromic acid, preferably in acetic acid solution) on the corresponding osmate esters containing at least one hydroxy group in the nucleus, which may first be prepared by the action of osmium tetroxide on a D 17 - 20 - cyanopregnene containing at least one hydroxy group in the nucleus.  The oxidation step is preferably followed, with or without isolation of the product thereof, by hydrolysis (e.g. with an aqueous solution containing sodium sulphite and potassium bicarbonate) to produce the corresponding 17a -hydroxy-20-ketopregnane.  The starting material may advantageously contain a 21-acyloxy substituent which, if the conditions are sufficiently mild, may remain unchanged during the hydrolysis of the osmate ester, or it may be simultaneously hydrolysed (e.g. by continuing the hydrolysis for at least about 15 hours at room temperature), in which case it may be reacylated, e.g. with acetic anhydride and pyridine.  Examples describe the preparation of: (1) 3 : 11 : 20-triketo - 17a  - hydroxy - 21 - acetoxypregnane from D 17 - 3a  - hydroxy - 11 - keto - 20 - cyano - 21 - acetoxypregnene; (2) 3 : 11 : 20 - triketo - 17a -hydroxypregnane from D 17.3a -hydroxy-11 - keto - 20 - cyanopregnene.  Lists of additional starting materials, intermediates and final products are given.  D 17.20-Cyanopregnenes containing at least one hydroxy group in the nucleus are obtainable by treating the corresponding 20-ketopregnanes or their acyl derivatives (e.g. 3a  : 21-diacetoxy - or 3a  - acetoxy - 11 : 20 - diketo-pregnane) with hydrocyanic acid or a salt thereof, treating the resulting cyanhydrin (after protection of any free primary or secondary hydroxy group present by acylation) with a dehydrating agent, and finally hydrolysing the nuclear acyloxy group or groups.